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F. J. FARRA.

SAFETY HOOK.

APPLICATION HLED mmo. I919.

Patented Aug. 12, 1919.

INVENTOR.

Favv'a. fix/ M M/# U M W A TTORNEY.

co" WASHINGTON, D. C.

front end directly FRANCIS J'. FARR-A, OF ROCHESTER, MINNESOTA.

SAFETY-HOOK.

Specification of Letters Patent.

Patented Aug. 12, 1919.

Application filed January 20, 1919. Serial No. 272,091.

State of Minnesota, have invented certain new and useful Improvements in Safety- Hooks, of which the following is a specification.

This invention relates to safety hooks for use for various purposes.

The object of the invention is to so construct such a hook that no spring is neces sary to hold it closed and which when closed, and engaged with an object to be secured, cannot accidentally open.

Another object is to so construct such a hook that the pull exerted thereon will opcrate to hold it closed and yet which may be easily opened for the insertion or removal of a ring or other object.

Another object is to provide a device of this character having no parts likely to be broken or to get out of order.

With the foregoing and other objects in view, whichwill appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings Figure 1 represents a side elevation of a hook constructed in accordance with this invention shown applied and closed in full lines and open in dotted lines,

Fig. 2 is a rear elevation thereof,

Fig. 3 is a vertical section, and

Fig. 4: is an enlarged detail perspective view of one member of the hook.

In the embodiment illustrated, the hook constituting this invention comprises two members 1 and 10, adapted to be pivotally connected. The member 1 comprises two correspondingly shaped bills 2 and 3 connected at their rear upper ends by a cross bar 4, said rear upper ends being provided with registering apertures 5 to receive a pintle 6 for connecting member 1 to member 10. One of the bills of the member 1 is provided at its rear upper end with a forwardly extending arm 7 which is offset inwardly as shown at 8 to position its free over the space between the front ends. of the bills 2 and 3, as is shown clearly in Fig. 4, said arm 7 being spaced from said ends a sufficient distance to permit the insertion and removal of a ring R or other object to be secured. This arm 7 projects at its front end a slight distance beyond the outer edges of the front ends of bills 2 and 3 as is shown clearly in Figs. 1 and 3, and preferably has its inner face curved or flared to facilitate the insert1on of the object to be secured by the book.

The cross bar 4 which connects the rear ends of the bills 2 and 3, is preferably thickened and made convex on its inner face as shown at 9 in Fig. 3, the convexity of this bar providin for the swinging of the hook member 1 re ative to the member 10 as will be presently described.

The member 10 has a shank 11 and a bill 12, both lying in the same plane and which is adapted to be arranged between the bills 2 and 3 of the member 1 and to be pivotally connected at the base of its bill12 with the member 1 by the pintle 6. The free end of bill 12 projects beyond the free ends of the bills 2 and 3 when the parts are assembled as shown in Fig. 3, and against which the arm 7 is designed to abut when the hook is closed. The hook shaped arms or bills 2 and 3 of member 1 are made wider than the bill 12 of member 10 as is shown clearly in Fig. 3 with their inner edges extended beyond the inner edge of bill 12 so that a ring R or other object to be secured by the hook will rest on these projecting edges and hold the hook in closed position, and when a pull is exerted on said ring, all possibility of the hook opening is thereby prevented.

The member 10 has a recess 13 in its rear edge opposite and extending below the pintle 6 as is shown clearly in Fig. 3 and which is designed to permit member 1 to swing upwardly on its pintle 6 into the position shown in dotted lines in Fig. 1 when it is desired to release the ring R and remove it from the hook.

From the above description it will be obvious thatthis safetyhook is composed of two majorpartsonly,thepintle 6 constituting the third member so that there are no springs to get out of order or any delicate parts liable to become broken thereby greatly prolonging the life of the hook and which is rendered absolutely safe when engaged with an object to be secured, it being impossible to open the hook member 1 as long as a strain is exerted in the direction of the arrow shown in Fig. 1.

It is of course understood that this hook invention together with the device which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes may be made as are within the scope of the claimed invention.

Having thus fully described my invention, what I claim as new and deslre to se cure by Letters Patent, is

1. A safety hook comprising two members having bills pivotally connected at their bases with an arm carried by one member and spannin the space between the upper ends of its bi l, and spaced from the free end of said hill.

2. A safety hook comprising two members having bills pivotally connected at their bases, 'an arm carried by the upper end of the pivoted portion of the bill and spanning the space between it and the free end thereof, said arm being spaced vertically from said free bill end and ofiset laterally to p0- 0091s: a! this patent may be obtained tor five cents each,

sition it in the path of the free end of the hil Q he h r m mb r- 3. A s ty"ho'ok comprising two members, one having a pair of laterally spaced parallel bills connected at the rear edges of one end, one of said connected ends havinga'ri arm extending forwardly and spanninghthes ace between it and the free ends of said bi is said arm being laterally offset to position its free end over the space between the free ends of said parallel bills, the other member including a bill pivoted at its base between the connected ends of the first mentioned bills, saidbill extending between the parallel bills of. the other mem er and being (it-less width than said bills.

4. A safety hook comprising two members, one. being composed of two corres 0ndingly shaped, laterally spaced paralle bills contineetedaat one end bye, cross bar, with an ammprojepgting; fprrwardl from the connected. 13d atianaatsaid bil nd et, la a y maaralthaeths m m wmp ls a a shank havlnga bill adapted to be mounted between the bills of the first mentioned member and pivoted to the connected end theref, t fsesand A? he i cmnediat l in nlongen'than the free ends of the other bii s and designed to abut said arm when the hook isih'plosed position.

,In testimpny whereof I aflix my signature in presence of two witnesses.

FRANCIS J. mean. S- R; I

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